CHAPTER IV. THE LACCOLITE 51

The Henry Mountains intrusives, by _Captain C. E. Dutton_ 61 The question of cause 72 The stretching of strata 80 The conditions of rock flexure 83 The question of cover and the question of age 84 The history of the laccolite 95 Laccolites of other regions 97 Possible analogues of the laccolite 98